and they need a lots of watts up them.[/QUOTE]
No they don't, they are a lot more sensitive than the AE1's. Obviously a 4 ohm load, though, so some current is required.
There are a number of different versions of the AE2, the design was refined over time. Some had Elac tweeters, some Seas, both types are very good. Later AE2's had a simplified crossover design with 12 dB/octave filters instead of the original 24 dB types.
The first version was very much a speaker in the flat earth mould. Not at all neutral, but fast, dynamic and capable of revealing rhythmic subtleties that many speakers miss.
I did, however, find them very room sensitive. Lack of bass was a common problem.
Given the choice, and compatibility of room size and amp power, I'd take the AE1 over the AE2.
The AE2's will go louder, with less voltage, so in a larger space might be the better choice.
The dedicated stands are necessary to get the best from the AE2's.
The common aluminium coned woofers suffer from foam rot, but appropriate replacement surrounds are readily available.
Both these speakers were the product of single-minded engineers, not marketing people, which makes a nice change. Plenty of integrity under the skin.